UPWARDS JETTING DIGITAL PRINTING PLATFORM

    公开(公告)号:US20250100275A1

    公开(公告)日:2025-03-27

    申请号:US18973442

    申请日:2024-12-09

    Abstract: A printing platform includes a printing engine with one or more printheads arranged such that the ink drops are jetted vertically upwards against the action of gravity; and a substrate transportation system where the normal to the surface in contact with the substrate is parallel and with opposite direction to the travelling direction of the jetted ink drops. It is necessary to counteract the weight of the substrate during the printing process to avoid it from falling under the action of gravity. This is achieved through any of a mechanical element that interferes with the falling of the substrate and that keeps it in place; or a system that generates adhesion forces between the element that transmits the motion to the substrate, typically a conveyor belt, and the substrate through the action of electrostatic forces, an air pressure differential between both faces of the substrate, or any other suitable mechanism.

    PRINTING SYSTEMS AND ASSOCIATED STRUCTURES AND METHODS HAVING INK DROP DEFLECTION COMPENSATION

    公开(公告)号:US20230339242A1

    公开(公告)日:2023-10-26

    申请号:US18342633

    申请日:2023-06-27

    CPC classification number: B41J11/06 B41J11/007

    Abstract: A printing system having a vacuum transfer belt conveyor includes a fixed or movable perforated platen that supports workpieces, e.g., substrates, boards or other parts, to be printed. The printing system is configured to apply vacuum action through apertures or perforations defined through the perforated platen. In an embodiment, the print system is configured to mitigate deflection of ink drops, through the implementation of both a passive system, which reduces air flow in the region below the a print bar that includes one or more printheads, as well as an active system, which distributes the workpieces, e.g., substrates or boards, with respect to perforations in the transfer belt. In some embodiments, the perforated platen is comprised of a plurality of modular plates.

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